import 'package:flutter/material.dart';

/// 健康管家主题 —— 暖茶绿 · Soft Clinical
/// 深青碧色主调 + 暖白基底 + 琥珀点缀 避开传统医疗蓝/紫
class AppTheme {
  AppTheme._();

  // ── 品牌色 ──
  static const Color primary = Color(0xFF0E8C7D);       // 深青碧 · 专业信赖
  static const Color primaryLight = Color(0xFFE3F4F0);  // 浅青底
  static const Color primaryDark = Color(0xFF0A6B5F);   // 深青

  // ── 背景 ──
  static const Color bg = Color(0xFFFAF6F1);            // 暖白 · 不冰冷
  static const Color surface = Color(0xFFFFFCF9);       // 卡片白

  // ── 文字 ──
  static const Color text = Color(0xFF2D2B32);
  static const Color textSub = Color(0xFF7B797F);
  static const Color textHint = Color(0xFFB0ADB5);

  // ── 功能色 ──
  static const Color success = Color(0xFF43A047);
  static const Color error = Color(0xFFE05D5D);
  static const Color warning = Color(0xFFF0984A);
  static const Color accent = Color(0xFFF0984A);        // 琥珀 · 高亮/操作

  // ── 边框 & 分割 ──
  static const Color border = Color(0xFFE8E4DF);
  static const Color divider = Color(0xFFF0ECE7);

  static ThemeData get lightTheme => ThemeData(
        useMaterial3: true,
        colorScheme: ColorScheme.fromSeed(
          seedColor: primary,
          primary: primary,
          surface: bg,
          brightness: Brightness.light,
        ),
        scaffoldBackgroundColor: bg,

        // AppBar
        appBarTheme: const AppBarTheme(
          backgroundColor: surface,
          foregroundColor: text,
          elevation: 0,
          centerTitle: true,
          titleTextStyle: TextStyle(fontSize: 18, fontWeight: FontWeight.w600, color: text),
        ),

        // 卡片
        cardTheme: CardThemeData(
          color: surface,
          elevation: 0,
          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(18)),
          margin: const EdgeInsets.symmetric(horizontal: 16, vertical: 6),
        ),

        // 输入框
        inputDecorationTheme: InputDecorationTheme(
          filled: true,
          fillColor: surface,
          contentPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 14),
          border: OutlineInputBorder(
            borderRadius: BorderRadius.circular(14),
            borderSide: const BorderSide(color: border),
          ),
          enabledBorder: OutlineInputBorder(
            borderRadius: BorderRadius.circular(14),
            borderSide: const BorderSide(color: border),
          ),
          focusedBorder: OutlineInputBorder(
            borderRadius: BorderRadius.circular(14),
            borderSide: const BorderSide(color: primary, width: 1.5),
          ),
          hintStyle: const TextStyle(color: textHint, fontSize: 15),
        ),

        // 按钮
        elevatedButtonTheme: ElevatedButtonThemeData(
          style: ElevatedButton.styleFrom(
            backgroundColor: primary,
            foregroundColor: Colors.white,
            minimumSize: const Size(double.infinity, 50),
            shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(26)),
            textStyle: const TextStyle(fontSize: 17, fontWeight: FontWeight.w600),
            elevation: 0,
          ),
        ),

        // 圆角 Dialog
        dialogTheme: DialogThemeData(
          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(24)),
          backgroundColor: surface,
        ),

        // 总体圆角
        chipTheme: ChipThemeData(
          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(20)),
          backgroundColor: primaryLight,
        ),

        // 字体层级
        textTheme: const TextTheme(
          headlineLarge: TextStyle(fontSize: 24, fontWeight: FontWeight.w700, color: text, letterSpacing: -0.5),
          titleLarge: TextStyle(fontSize: 20, fontWeight: FontWeight.w600, color: text),
          titleMedium: TextStyle(fontSize: 18, fontWeight: FontWeight.w600, color: text),
          bodyLarge: TextStyle(fontSize: 16, fontWeight: FontWeight.w400, color: text, height: 1.5),
          bodyMedium: TextStyle(fontSize: 15, fontWeight: FontWeight.w400, color: textSub, height: 1.4),
          labelLarge: TextStyle(fontSize: 14, fontWeight: FontWeight.w500, color: textSub),
          labelMedium: TextStyle(fontSize: 13, fontWeight: FontWeight.w400, color: textSub),
          labelSmall: TextStyle(fontSize: 11, fontWeight: FontWeight.w400, color: textHint),
        ),
      );
}